diff options
Diffstat (limited to 'code/fun/pipes')
| -rwxr-xr-x | code/fun/pipes | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/code/fun/pipes b/code/fun/pipes deleted file mode 100755 index 43e7046..0000000 --- a/code/fun/pipes +++ /dev/null @@ -1,122 +0,0 @@ -#!/usr/bin/env bash -# pipes.sh: Animated pipes terminal screensaver. -# -# This modified version is maintained at: -# -# https://github.com/livibetter/pipes.sh - -# options: -# s = straight [5-15] -# f = rate [20-100] -# t = style [0-5] -# r = ttl - -VERSION=0.1.0 - -M=32768 -p=1 -f=75 s=13 r=2000 t=0 -w=$(tput cols) h=$(tput lines) -# ab -> idx = a*4 + b -# 0: up, 1: right, 2: down, 3: left -# 00 means going up , then going up -> ┃ -# 12 means going right, then going down -> ┓ -sets=( - "┃┏ ┓┛━┓ ┗┃┛┗ ┏━" - "│╭ ╮╯─╮ ╰│╯╰ ╭─" - "│┌ ┐┘─┐ └│┘└ ┌─" - "║╔ ╗╝═╗ ╚║╝╚ ╔═" - "|+ ++-+ +|++ +-" - "|/ \/-\ \|/\ /-" -) -v=() -RNDSTART=0 -NOCOLOR=0 - -OPTIND=1 -while getopts "p:t:f:s:r:RChv" arg; do -case $arg in - p) ((p=(OPTARG>0)?OPTARG:p));; - t) ((OPTARG>=0 && OPTARG<${#sets[@]})) && V+=($OPTARG);; - f) ((f=(OPTARG>19 && OPTARG<101)?OPTARG:f));; - s) ((s=(OPTARG>4 && OPTARG<16 )?OPTARG:s));; - r) ((r=(OPTARG>=0)?OPTARG:r));; - R) RNDSTART=1;; - C) NOCOLOR=1;; - h) echo -e "Usage: $(basename $0) [OPTION]..." - echo -e "Animated pipes terminal screensaver.\n" - echo -e " -p [1-]\tnumber of pipes (D=1)." - echo -e " -t [0-$((${#sets[@]} - 1))]\ttype of pipes, can be used more than once (D=0)." - echo -e " -f [20-100]\tframerate (D=75)." - echo -e " -s [5-15]\tprobability of a straight fitting (D=13)." - echo -e " -r LIMIT\treset after x characters, 0 if no limit (D=2000)." - echo -e " -R \t\trandom starting point." - echo -e " -C \t\tno color." - echo -e " -h\t\thelp (this screen)." - echo -e " -v\t\tprint version number.\n" - exit 0;; - v) echo "$(basename -- "$0") $VERSION" - exit 0 - esac -done - -# set default values if not by options -((${#V[@]})) || V=(0) - -# Attempt to workaround for Bash versions < 4, such as 3.2 on Mac: -# https://gist.github.com/livibetter/4689307/#comment-892368 -# Untested--in conduction of using shebang `env bash`--should fall back to -# `sleep` -printf -v SLEEP "read -t0.0$((1000/f)) -n 1" -if $SLEEP &>/dev/null; (($? != 142)); then - printf -v SLEEP "sleep 0.0$((1000/f))" -fi - -cleanup() { - # clear up standard input - read -t 0 && cat </dev/stdin>/dev/null - - tput rmcup - tput cnorm - stty echo - exit 0 -} -trap cleanup SIGHUP SIGINT SIGTERM - -for (( i=1; i<=p; i++ )); do - c[i]=$((i%8)) n[i]=0 l[i]=0 - ((x[i]=RNDSTART==1?RANDOM*w/32768:w/2)) - ((y[i]=RNDSTART==1?RANDOM*h/32768:h/2)) - v[i]=${V[${#V[@]} * RANDOM / M]} -done - -stty -echo -tput smcup -tput reset -tput civis -# any key press exits the loop and this script -while $SLEEP; (($? > 128)) || [[ $SLEEP = sleep* ]] && (($? == 0)); do - for (( i=1; i<=p; i++ )); do - # New position: - ((${l[i]}%2)) && ((x[i]+=-${l[i]}+2,1)) || ((y[i]+=${l[i]}-1)) - - # Loop on edges (change color on loop): - ((${x[i]}>w||${x[i]}<0||${y[i]}>h||${y[i]}<0)) && ((c[i]=RANDOM%8, v[i]=V[${#V[@]}*RANDOM/M])) - ((x[i]=(x[i]+w)%w)) - ((y[i]=(y[i]+h)%h)) - - # New random direction: - ((n[i]=RANDOM%s-1)) - ((n[i]=(${n[i]}>1||${n[i]}==0)?${l[i]}:${l[i]}+${n[i]})) - ((n[i]=(${n[i]}<0)?3:${n[i]}%4)) - - # Print: - tput cup ${y[i]} ${x[i]} - [[ $NOCOLOR == 0 ]] && echo -ne "\033[1;3${c[i]}m" - echo -n "${sets[v[i]]:l[i]*4+n[i]:1}" - l[i]=${n[i]} - done - ((r>0 && t*p>=r)) && tput reset && tput civis && t=0 || ((t++)) -done - -cleanup
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